jm ^9%;8k÷àJþòæg¢~Ç`½yÎBÇ*)LNothing can be done. He'll even shutting down the project wouldn't work since it is open source, and it's all on the blockchain already.
https://whatsonchain.com/tx/9f83054a67ddbe8ee803d1256a74c67ed135ff7a3d907c5d5f24557ca6ec602e